The Green Glass Door game!!

This is a forum based game in which players (YOU) are trying to get objects through the mysterious Green Glass Door! The keeper's (ME) job is to make sure only the right things get through the wonderous Green Glass Door. So here is what you do...
you say a random item, then I tell you whether or not it can go through. Pretty simple right??
forum rules apply and if you already know how to play or the discover the secret, DON'T RUIN IT!!!!

Sometimes we look but refuse to see, sometimes we convince ourselves there is nothing to see, and then, occasionally, we actually look at what is in front of us, and see. It is funny though that light can't enter, but the seeing can. The doom and gloom will enter though. as I have said elsewhere: pi-pinnnnnnggggggg.